Method of and means for selecting, reproducing, and assembling items of data



Sept. 5, 1944. c. F. M CONNELL ETAL 2,357,674

METHOD OF AND MEANS FOR SELECTING, REPRODUCING,

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METHOD OF AND MEANS FOR SELECTING, REPRODUCING,

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P 1944- c F. MCCONNELL ETAL 2,357,674

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p 1944- c. F. M CONNELL ET AL 2,357,574

, METHOD OF AND MEANS FOR SELECTING, REPRODUCING,

AND ASSEMBLING ITEMS OF DATA Filed Jan. 30, 1939 15 Sheets-Sheet 4 P 1944- c. F. M CONNELL ETAL 2,357,674

METHQD OF AND MEANS FOR SELECTING, REPRODUCING,

AND ASSEMBLING ITEMS OF DATA Filed Jan. 30, 1959 15 Sheets-Sheet s Sept- 1944- c. F. M CONNELL ET AL 2,357,674

METHOD OF AND MEANS FOR SELECTING, REPRODUCING,

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Sept. 5, 1944. c. F. M CONNELL ET AL 2,357,674

METHOD OF AND MEANS FOR SELECTING, REPRODUCING,

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METHOD OF AND MEANS FOR SELECTING, REPRODUCING',

AND ASSEMBLING ITEMS OF DATA Filed Jan. 30, 1939 15 SheetsSheet ll BITE-5 214 lnuerdor q E5 22 Cfia leiF/lkCofiggl fczwzcewmia.

Sept. 5, 1944.

METHOD OF AND MEANS FOR SELECTING, REPRODUCING,

C. F. M CONNELL ETAL AND ASSEMBLING ITEMS OF DATA Filed Jan. 30, 1959 15 Sheets-Sheet l2 62.44 6441., @zw mflx P 1944. c. F. M CONNELL ETAL 2,357,674

7 METHOD OF AND MEANS FOR SELECTING, REPRODUCING',

AND ASSEMBLING ITEMS OF DATA Filed Jan. 30, 1939 l5 Sheets-Sheet 13 fizz/anions 3 ilarieb [7M0 Conrad Chg'e/zceZ'. Gmifk C. F. M CONNELL ETAL METHOD OF AND MEANS FOR SELECTING, REPRODUCING,

Sept. 5, 1944.. 2, 7,674

AND ASSEMBLING ITEMS OF 'DATA w Filed Jan 30, 1939 15 Sheets-Sheet 14 fizz/(21210715 3 a CZIdrZQ-SFMCGJIYIZeZZ C'larenaeESmai/z Sept. 5, 1944.

c. F. M CONNELL ETAL 2,357,674 METHOD OF AND MEANS FOR SELECTING, REPRODUCING,

AND ASSEMBLING ITEMS OF DATA Filed Jan. 30, 1939 15 Sheets-Sheet 15 'eration to effect the selection Patented Sept. 5, 1944 METHOD OF AND MEANS FOR SELECTING,

REPRODUCING, AND

OF DATA ASSEMBLING ITEMS Charles F. McConnell, Oak Park, and Clarence E. Smith, Chicago, Ill., assignors to Sears, Roebuck and Co., Chicago, 111., a corporation of New York Application January 30, 1939, Serial No. 253,562

- 20 Claims.

This invention concerns a novel method of selecting, reproducing and assembling items of data; and means for practicing the method.

It has been the practice heretofore in gathering together data from separate record sheets into an assemblage such as a continuous list, to prepare a typewritten transcript. However, where a large number of items must be assembled such procedure requires a great amount of time and labor not only for the actual work of transcribing but also for checking purposes. Even with careful checking there has been ever present the liability of errors in the transcript. Business concerns and institutions where the preparation of such assemblages from voluminous records must be undertaken at frequent intervals, as for governmental tax reports and other purposes, have found the prior procedure a costly clerical burden.

A general object of the present invention is to reduce substantially the necessary labor and. expense involved in selecting, reproducing and assembling separate items of data-into a list and at the same time to increase substantially the speed, efllciency and accuracy with which this can be accomplished.

Another object of the invention is to provide a novel method of and means for assembling separate items of data by producing facsimiles of such items and arranging the facsimiles in predetermined order upon a common base. I

A further object of the invention is to provide a methodof and means'by which a plurality of remotely located items of data appearing in separated relation on an individual record sheet are reproduced in facsimile one by one and grouped in juxtaposed alinement' transversely across an elongated base sheet in predetermined orderly sequence together with the facsimile groups derived from numerous other individual record sheets.-

. vide an apparatus for reproducing selective items of data in facsimile wherein individual record sheets containing the selective items on remote portions thereof and facsimile-producing means are relatively moved cooperatively during oping and orderly assemblage of the items upon A still further object of the invention is to provide for use with a facsimile-producing dethe facsimile record.

vice a machine which will automatically and coordinately with the operation of the facsimileproducing device handle successive individual record .sheets, select from the sheets the items of data to be reproduced in facsimile and after the facsimiles have been made deliver up the record sheets in the same order in which they are delivered to the machine.

Yet another object of the invention is to provide in a 'novel machine of this character automatic record-sheet delivery and feeding mechanism, means for selecting the items of data to be reproduced, means for positioningv the record sheets relative to the facsimile-producing device, stacking means for receiving and delivering up the recorded sheets, means for synchronously effecting adjustments of the positioning and the stacking means, and meansfor coordinating the operations of the machine and the facsimile-producing means.

, Other objects and advantages will become apparent in the following description and from the accompanying drawings in which:

Figure 1 is a side elevational view of apparatus embodying the principles of the invention.

Fig. 2 is a fragmentary perspective view showing a modified form of delivery means for the machine.

assemblage. Fig. 5 is a schematic view showing a method of handling the record sheets;

Fig. 6 is a face-view of a fragmentary portion of a facsimile assemblage-of data such as may be produced by the present invention.

Fig. 7 is an enlarged fragmental longitudinal sectional view taken substantially along line 1-4 of Fig. 3.

Fig. 8 is an enlarged fragmentary sectional detail view taken substantially along line t& of Fig. 1.v

Fig. 9 is a sectional view along line 9-9 of Fig. 8. I

Fig. 10 is a sectional detail-view taken subtaken substantially lstantially along line iO-ifi of Fig. 7. and proper group- I Fig. 11 is a fragmentary plan view of a portion of the top of the machine taken substantially in the plane of line H-li of Fig. 1 and with certain parts broken away to show details of construction.

Fig. 12 is a fragmentary sectional view taken' substantially along line l2-l2 of Fig. 11.

Fig. 13 is a fragmentary elevational view of the right hand end of substantially that portion of the machine shown in Fig. 11.

Fig. 14 is a transverse sectional view taken substantially along line l4l4 of Fig. 13.

Fig. 15 is a transverse sectional view taken substantially along line Il5 of Fig. 13.

Fig. 16 is a fragmental sectional view taken substantially along line I6|6 of Fig. 14.

Fig. 1'7 is a fragmentary sectional view taken substantially along line |1|'| of Fig. 16.

Fig. 18' is a front elevational view of the cam housing and handle of the drumclutch adjusting mechanism.

Fig. 19 is a sectional view taken substantially along line i9-l9 of Fig. 14.

Fig. 20 is a fragmentary sectional view taken substantially along line 20-20 of Fig. 19.

Fig. 21 is a fragmentary sectional'elevational view. taken in substantially the same plane as Fig. but showing only the right side portion of the machine with certain of the parts,in different operative relationships.

Fig. 22 is a fragmentary sectional plan view taken substantially along line 22-22 of Fig. 14.

Fig. 23 is a. fragmentary sectional plan view taken substantially along line 2323 of Fig. 16.

Fig. 24 is a fragmental sectional view taken substantially along line 24-24 of Fig. 1.

Fig. 25 is a perspective view of one of the sheetengaging and shifting carriages.

Fig. 26 is a fragmentary sectional elevational view taken-substantially along line 2626 of Fig.

Fig. 2'7 is a fragmentary sectional elevational view taken substantially along line 21-21 of Fig. 24, and on an'enlarged scale.

Fig. 28 is a fragmentary sectional elevational view taken substantially along line 28-28 of Fig. 14.

Fig. 29 is a circuit diagram of a system of electrical operating circuits for the apparatus.

Fig. 30 is a small scale, face view of another form of record sheet.

Fig. 31 is a top plan view of a slightly modified form of the invention.

Fig. 32 is a transverse sectional elevational view taken substantially along line 32--32 of Fig. 31.

Fig. 33 is a perspective view of a modified form of tem-selecting mask.

Fig. 34 is a sectional elevational view taken substantially along line 34-34 of Fig. 32.

Fig. 3515 a diagrammatic view showing steps in the operation of the modified form of the invention shown in Fig. 31.

Fig. 36 is a s de elevational view of modified form of the invention.

Wh le th 'invention is susceptible of various modifications and alternative constructions we have shown in the drawin s and Will herein describe in detail the preferred method and certain a further preferred apparatus, but it is to be understood that we do not thereby intend to limit the invention to the specific forms disclosed. but intend to cover all modifications and alternative cons ructions falling within the spirit and scope of the invention as expressed in the appended claims. Attention is also called to the fact that while it may be necessary in order to convey a thorough understanding of the invention to describe with particularity one or more forms Along with this a facsimile reproduction will befrom a mass of such data and reproduced in facsimile on another sheetin a preferred group relationship. Upon the facsimile-containing sheet, serving as a common base, may then be reproduced in facsimile in prefered sequence additional groups of items of. data respectively selected from other record sheets. of using this method, the facsimiles of the items of data are produced photographically upon a sensitized base such as a negative film, photostat, or the like, which may be in the form of a continuous strip sheet. Thereby an entire assemblage of data or a summary' list containing a large number of groups of data in facsimile may be furnished on a single sheet or strip which can be rolled up or folded into a compact bundle. Moreover, the facsimiles may be produced on a substantially smaller scale than the originals. so that the bundle of the finished list will occupy only a small filing or storage space.

General description By way of example, to facilitate an.understanding of the invention, it will be assumed that a list is to be prepared of the employees of a busimust contain the data necessary to identify the employees as well as the data relating to the taxable wages each has earned in the given period. This data is usually recorded upon individual employment record cards or sheets from which it must be selected, reproduced and assembled.

In Fig. 4, is shown one side of a record card or sheet 40 which may serve as an individual employment record, a portion A at the top thereof containing the necessary employee identification data such as name, number, employment date, and the like. The body of this record sheet may be appropriately subdivided and apportioned to receive a weekly, monthly and quarterly record of the employees time and wages as well as other desirable data over an entire year, each side of the sheet being adapted to contain a half-year record. In the present instance each side of the sheet is divided into two sections, B and C, each of which will cover a quarter-year period. At

the end of each quarter the taxable wages paid during that quarter may be totaled in the spaces ident fied at 4| and 42 of the sectionsB and C, respectively.

In preparing the list according to the present invention, a facsimile reproduction will be made of the data contained in the top portion A of the record sheet. which for convenience will be referred to hereinafter as the primary data.

' made of the data appearing as a quarterly numerical total in either of the selective spaces 4| or 42, which will hereinafter be denominated as the secondary data." Preferably the two items of data thus reproduced will be rearranged to appear in linear juxtaposition to provide a group D transversely of a facsimile-base sheet 43 (Fig. 6). Any preferred dimensons as to width and length may be provided in the base sheet 43. As

In one manner shown, it is just wide enough to receive the facsimile group D, and it maybe of any preferred length to receive an orderly succession of the facsimile roups all of which willbesimilarly derived from individual record sheets.

Although, in principle the invention is not m tended to be limited to any particular process of making thefacsimiles of the groups D, a suitable photographic process may be used to advantage for accuracy of reproduction, adaptability with respect to arrangement of the assembled data, and compactness-because of the practicability of making the facsimiles on a substantially smaller scale than the original data items. A photographic recording instrument of any suitable character, indicated generaly at 44 (Figs. 1 and v 5), may be used to produce the facsimiles upon the base sheet 43, which for this purpose may be a photographic negative film, a sensitized photostat paper, or the like. The-lens of the instrument is sharply focused upon a predetermined, limited field and each record sheet is positioned first to locate the primary data of the portion A thereof in the field at substantially the median line of focus, with all but the primary data concealed from the effective photographic range of the instrument. Thereupon the instrument is operated to make the photographic reproduction or facsimile of the primary data upon the sensi tized base 43. Thence the record sheet is shifted to bring the selected secondary data item 4| or 42 to the median line of focus and in juxtaposition to the place which had been occup ed by the primary data, all of the remainder of the record sheet, of course, being concealed. At this'point, the recording instrument isagain operated so as to photograph the selected secondary data as part of the group D in juxtaposition to the facsimile of the primary data already upon the sensit zed base 43. This procedure is repeated and the sensitized base 43 is advanced step by step ,by suitable increments until the selected data from as many of the record sheets 40 as desired has been reproduced in facsimile in the preferred assemblage.

Referring to Figs. 1 and 3, a preferred form/of machine for handling the record sheets 40 in cooperation with the record ng instrument 44 includes means, generally indicated by the numeral 45, for supporting the sheets in a stack for successive delivery to means 41 by which they are fed into proper position in the photographic field of the recording instrument. There each of the record sheets 40 is held by means 48 with only the primary data portion A exposed to be photographed while the remainder of the sheet is concealed or masked by means 49. After the re-- cording instrument 44 has been actuated, the sheet 40, st ll engaged by the means 48, is re positioned relative to the concealing means 49 by the operation of suitable adjustably controlled mechanism 50 to expose either of the selected secondary data items such as by attachment to a common base structure 51. Suitable electrically operated controls 3 may be furnished to correlate the various features of the apparatus for automatic cyclical operation.

Sheet delivery means I The sheet delivery means is preferably constructed to support a relatively large stack of the record sheets 40 for delivery automatically one at a'tirne from the stack to the feeding means 41. To this end the delivery means includes a removable, high-walled sheet supporting tray 51 within which a stack of the sheets can be readily assembled and transported to the machine (Fig. 7). The bottom of thetray may consist of a plate 58 having a marginal downturned flange 53 at all four sides to engage removably within.

a channel-shaped, inturned base flange 60 provided along the lower edges of the \traywalls. When the tray is in sheet-delivery position, the base flange 60 will rest upon the shoulder furnished by a suitable inwardly projecting flange 62 near the bottom of a surrounding framework 63 which defines in effect, a tray-receiving well open at the front for insertion or removal of the tray.

A suitable elevator is provided for raising the stack of sheets from the tray 51 for delivery. Herein an, elevator table 64 is supported under the tray-base plate 58 in any suitable manner as by a vertical feed screw 65 fixed thereto. Actuation of the elevator may be effected through the medium of a driving nut 61 through which the feed screw is threaded v(Figs. 7 and 8). A hearing for supporting the nut rotatably in a fixed axial position is provided by a stationary collar 63 4 which is suitably attached as by means of bolts 69 the driving nut 61 is formed as a bevel pinion 1| which meshes with a bevel gear 12.

Passing through and fixedly secured as by means of a pin 13 to the bevel gear 12 is a driving shaft 14 which has its inner end journaled in a bearing bracket 15. Support for the bearing bracket is provided by a. pair of upstanding arms 11 which are secured to the supporting bracket 10 by the collar-attachment bolts 69.

When the drive shaft 14 is rotated in one direction, herein counterclockwise as seen in Fig. 9, the nut 61 will be correspondingly rotated by the bevel gear 12 to advance the elevating screw 65. Upon reversing the rotation of the shaft 14 the elevating screw will, of course, be retracted.

Power for rotating the elevator driving shaft 14 in either direction may be applied manually as through the medium. of a conventional crank 18 which may be. inserted removably upon the squared outerend of the shaft. On the other hand, the shaft may be power driven through the medium of a power transmission pulley l9 and a 4] or 42 to be photographed. 1 Thereafter, the repositioning means furctions to .worm 84 on the motor shaft driving belt which runs over a continuously driven main driving pulley 8| (Figs. 3 and.7). The latter is secured to a main drive shaft 82 which is continuously driven by a suitableprime mover such as a motor 83. A driving connection between the motor and the main drive shaft is effected by power transmission gearirg such as a meshing with a transmission gear 85 fast upon shaft. Both the motor and the may be supported machine.

main' drive shaft by the main frame 55 of the For practical purposes, it is desirable to have 1 vance or retract the elevating screw 65 at any the main drive maybe rotated by hand either to adtime, while the power driving means will operate only at predetermined intervals to rotate the driving shaft in but one direction, namely, to advance the elevating screw 65. To this end, the power transmission pulley 19 is carried at the outer end of a sleeve or tubular shaft 81 which is coaxial about and freely rotatable relative to the elevator driving shaft 14. A bearing hub 88 extending rigidly below the well framework 63 provides a journal for the tubular shaft 81. At its inner end, the tubular shaft carries a fixed star clutch element 89 which is adapted to be engaged by a clutch member 90 mounted in freely slidable coaxial relation about the tubular shaft. The clutch member 90 is normally biased, as by means of a compression spring 9|,to move into engage-e ment with the star clutch element 89. At the same time that the clutch member 90 is in en gagement with the star element 89, clutch teeth 92 projecting from the clutch member are adapted to mesh withcomplementary clutch teeth 93 upon the bevel gear 12. Thus, it will be observed that when the clutch member 90 and the star clutch element 89 and the clutch teeth 93 of the bevel gear are in operative interengagement,

power will be transmitted from the continuously rotating tubular shaft 81 to advance the elevating will engage a clutch release pin 91 which projects radially from the clutch member 90 (Figs. 8 and- 9). A tension spring 98 normally holds the declutching bar 94 in its operative position so that the finger 95 will engage the pin 91, and suitable control means such as a solenoid 99 is provided for shifting the declutching'bar 94 pivotally out of engagement with the clutch release pin 91 when the elevator is to be actuated to raise the stack. Thus, when the declutching bar 94 is in its normal operative position, the clutch member 90 will be held inactive in opposition to the compression spring 9|, but instantly upon energization of the solenoid to release the declutching bar the clutch member will act to connect the parts of the drive to raise the elevator.

Energization of the solenoid 99 is controlled by a switch I00 which forms part of an electrical circuit to be more fully described hereinafter. This switch contains an adjustable stationary upon, the clutch-controlling solenoid 99 will be deenergized to permit the declutching bar 94 to swing into declutching position and thus halt the elevating movement. After the stack of sheets has been thinneddown to a predetermined extent by delivery of sheets therefrom, the switch I00 will again be closed tobring about further elevation of-the stack.

Novel automatically operable means is provided for delivering the sheets one at'a time from the top of the stack to the feeding means 41. Such delivering means herein includes a pusher pad I09 made of rubber or other suitable gripping material which is mounted at the rear end of a pusher bar H0. At its opposite end, the pusher bar is pivotally connected to a yoke I II near the top of a normally generally upright ac-' tuating bar -I I2. The latter is carried by a horizontal rock shaft I I3 which is supported pivotally across the front of the well framework 63 at a substantially lower level than the normal working level of the stack of sheets 40. The position of the actuating lever H2 and the rock shaft H3 is such that when the actuating lever is swung inwardly it will engage the upper forward corner of the stack and push the uppermost leaves in progressively advanced or feathered relationship toward the feeding mechanism 41. A rigid lever I I4 depends from one end of the shaft H3 and is connected to a tension spring H5 which tends normally to rock the shaft forwardly to hold the actuating lever H2 inits outermost position away'from the stack of leaves 40 (Figs. 3 and 7).

When a leaf 40 is to be delivered from the stack, a solenoid H1 is energized to kick against the lever H4 in opposition to the tension spring I I5'so as to rock the shaft H3 rearwardly and thereby swing the actuating bar H2 inwardly. to advance the pusher bar H0 and to feather the top few sheets. The uppermost leaf will thus be engaged by the pusher I09 and forced to move rearwardly beyond the stack. Leaf-engaging pressure upon the pusher is effected by a tension spring H8 connected across the angle between the pusher bar H0 and the actuating bar H2. Upon return of the actuating bar H2 to initial position, a stop lug H9 which depends from the pusher bar H0 will engage an adjustment screw I20 mounted upon the actuating bar H2 and cause the pusher I09 to be lifted slightly above contact I M which is supported'by a bracket I02 mounted upon the upper part of the well framework 63. A movable contact I03 for the switch is carried at one end of an actuating'lever I04 which is pivotally supported by a suitable bracket I05 also mounted upon the upper part of the framework 63. A tension spring I01 nor-- mally tends to pivot the actuating lever I04 into switch-closing position.

. The free end of the actuating lever is formed the stack. Afinger hold for actuating the pusher manually is provided by an upstanding extension H2 at the top of the actuating bar H2.

.As theleaves 40 of the stack are feathered rearwardly by the actuating bar H2 they engage .an inclined retaining shoulder I2I over the top of which the uppermost sheet may be advanced by the pusher I09. Occa ionally, however, more than one sheet may advance over the shoulder I2l simultaneously and suitable kick-back means is therefore provded'for returning the additional sheet or sheets to the stack. Herein such kickback means includes .a rubber tired roller I22 which is continuously driven rotatably by means of a suitable flexible shaft I23 connected by suitable gearlng in any preferred manner to transmit driving power from the main drive shaft 82. This roller is supported rotatably adjacent to but below the top surface of the shoulder I2I by a pair of horizontal arms I 24 which are pivotally connected at their opposite ends to a bracket I25 by means of a rock shaft I21. Support'is provided for the bracket I25 by the lower face of a sheet-receiving table I28 which is carried by the main framework 55 of the machine rearwardly of and in a plane with the top of the shoulder I2I.

When more than one sheet is delivered over the shoulder I 2| to the table I28, a detector I of a tension spring I31 normally in a position of adjustment where only a single sheet may pass the detector finger freely. When more than a. single sheet enters between the detector finger and the top of the'shoulder I2I the spring I34 will yield to permit the switch-closing movement of the switch lever I3I.

Closure of the switch I3I closes a circuit (to be hereinafter more fully described) to cause a solenoid I38, which is mounted below the roller supporting arms I24, to become energized and to swing the arms upwardly about the rock shaft I21. This will carry the kick-back roller I22 upwardly through a slot I38 in the shoulder I2I to engage and force the extra sheet back into place in the stack. In order to provide a base against which the kick-back roller I22 can operate, an

abutment pad I40 is supported over the slot I 38 as by means of an arm I (Figs. '1 and The latter is pivotally supported by a bracket I42 and carries an adjustment boss I43 which is engagd between adjustment screws I44 carried by the bracket. Through this arrangement acvidually by hand, a manual delivery table I5I may be substituted (Fig. 2). To render such substitution convenient,vthe well framework 53 and the delivery table I5I may be provided at the rear thereof with attachment hooks I52 and I53, respectively, which will removably engage suitable supporting pins I54 upon the main frame 55 of the machine (Fig. 10) When in delivery position, the top of the manual delivery table I5I will be inthe same plane as the top of the table I28 to which the sheets are delivered.

Sheet-feeding means As'each record sheet 40 is delivered to the table I28, it is engaged by the feeding means 41 to be advanced over the table I28. For this purpose, the feeding means includes a pair of rubher-tired feeding rollers I55 which are continuously driven through the medium of a flexible shaft I51 which is suitably geared at one end to a feed roller shaft I58 and at the opposite end to the main drive shaft 82 (Figs. 1, 3,

7 and 10). In this manner the feed rollers I55 .are continuously driven while the machine is inoperation.

An adjustable support for the feed rollers I55 is provided by a substantially horizontally extending carrying yoke member I58, the arms of which provide journals for the feed roller shaft I58. The carrying yoke is pivotally supported by the upstanding arms of a U-shaped bracket I50. Proper adjustment of the feed rollers I55 to maintain a non-contacting spaced relationship of the peripheries thereof from the top of the table I28 is effected by means of an adjustment screw I5I which is threaded through a rigid'ear I52 on the inside of the pivot portion of the roller-carrying yoke I58 and which abuts the base of the bracket I50. Resilient tension is maintained on the feed rollers by a compression spring I53 to hold them in feeding position curate adjustment of the abutment pad I40 can be effected relative to .the kick-back roller I 22 and the top of the shoulder I2I.

As soon as the extra sheet has been kicked back, the switch I3I will, of course, be opened. and the solenoid I38 will become deenergized to permit the kick-back roller to drop to its initial position. In the present instance such initial position is determined by a headed pin or bolt I which passes through an ear I41 connected to the roller supporting arms I24 and which is mounted upon. an angular bracket arm I48 that depends from the main kick-back roller bracket I25 and in part underlies the ear I41. The head of the bolt I45 serves to limit the descent of the kick-back roller, and a compression spring I 48 surrounding the limit bolt between the ear I41 and the underlying part of the bracket arm I48 acts to shift the roller I22 positively to initial position after deenergization of the solenoid I38. A limit upon the approach of the kick-back roller I22 to the abutment pad I40 under the influence of the solenoid I38 may be suitably determined as by means of an adjustable limitstud I to avoid engagement by the roller of the properly advancing topmost record sheet after the extra sheet has been returned. This stud may conveniently be threaded adjustably upwardly through the underlying part of the bracket arm I48 for engagement by the ear I41.

If, instead of delivering the record sheets automatically by the delivery means 45 as debut to permit yielding of the rollers when necessary. The spring I53 may be located between the 1 base of the bracket I60 and a suitable ear I54 extending rearwardly from the carrying yoke I58.

" Sheet-concealing and .masking means under of the record sheets 40 (Figs. 11 and 14). I

If it is desired to gain access to the table under the shield plate I55, the latter may be lifted to swing upwardly about a horizontal axis provided at the rear thereof by a. supporting rod I58 which extends between a pair of upstanding ears I58 at the opposite side edges of the table I28 (Figs. 1, 11, 12 and 13). To expose the necessary data-containing portions of the underlying record sheets 40, the shield plate I55 is appropriately cut out transversely to twice the width of the record sheets 40 to provide a substantial pening or exposure aperture I10 along the median line of focus of the recording instrument 44.

scribed, it is desired to deliver the sheets indi- For the purpose of selecting the data which is. to be photographically reproduced from the 

